Issue 5, 2004

Synthesis and characterisation of four new heterometal alkoxides: potential precursors for the MOCVD of ferroelectric oxides

Abstract

The new strontium–niobium heterometal complexes [SrNb2(OEt)82-OEt)22-O- dmae)2] 1, [SrNb2(OEt)82-OEt)22-O-dmae)2(EtOH)2] 2, and [SrNb2(OEt)62-OEt)42-O-bis-dmap)2] 3, and have been prepared from the reaction between [SrNb2(OEt)12] and the donor-functionalised alcohols dmaeH (dmaeH = N,N-dimethylaminoethanol) and bis-dmap [bis-dmapH = 1,3-bis(dimethylamino)propan-2-ol]. The new strontium–tantalum complex [SrTa2(OPri)82-OPri)22-O-dmae)2] 4, has been prepared from [SrTa2(OPri)82-OPri)4(PriOH)2] and dmaeH in an analogous manner. The complexes 2, 3, and 4 have been structurally characterised by single crystal X-ray diffraction, and are shown to be discrete alkoxide-bridged trinuclear molecules. The complexes are potential ‘single-source’ Sr–Nb and Sr–Ta precursors for the MOCVD of SrBi2Ta2O9 and SrBi2(TaxNb1−x)2O9, illustrated by the successful use of 1 for the MOCVD of strontium niobate, SrNb2O6.

Graphical abstract: Synthesis and characterisation of four new heterometal alkoxides: potential precursors for the MOCVD of ferroelectric oxides

Supplementary files

Article information

Article type
Paper
Submitted
10 Oct 2003
Accepted
18 Dec 2003
First published
23 Jan 2004

J. Mater. Chem., 2004,14, 887-894

Synthesis and characterisation of four new heterometal alkoxides: potential precursors for the MOCVD of ferroelectric oxides

A. C. Jones, N. L. Tobin, P. A. Marshall, R. J. Potter, P. R. Chalker, J. F. Bickley, H. O. Davies, L. M. Smith and G. W. Critchlow, J. Mater. Chem., 2004, 14, 887 DOI: 10.1039/B312697H

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